tedster - 7:09 pm on Mar 15, 2010 (gmt 0)

As I read it, the context was not even about a chain of redirects:

the user who originally implemented a link to the site didn't link to it on the new domain

Matt began by mentioning a "page by page migration" and Eric came back with "you write yourself a nice little statement that basically instructs the search engine and, any user agent on how to remap from one domain to the other."